Re: /usr/local/share/u-boot/u-boot-orangepi-plus-2e/README out of date ; orangepi-plus-2e and RPi2 v1.1 get "Kernel args: (null)"

On Sun, 30 May 2021 22:32:38 -0700
Mark Millard via arm <arm@freebsd.org> wrote:

> On 2021-May-30, at 22:27, Mark Millard <marklmi at yahoo.com> wrote:
> 
> > On 2021-May-24, at 20:10, Mark Millard <marklmi at yahoo.com> wrote:
> > 
> >> On 2021-May-24, at 15:53, Mark Millard <marklmi at yahoo.com> wrote:
> >> 
> >>> On 2021-May-13, at 12:03, Mark Millard <marklmi at yahoo.com> wrote:
> >>> 
> >>>>>>> . . .
> >>> 
> >>> I do not know if the FreeBSD kernel has been depending
> >>> on some U-Boot initialization for root-on-USB and the
> >>> two no longer match or what.
> >>> 
> >>> But I've used a release/13.0.0.0 microsd card based
> >>> boot to get older U-Boot materials (Quarterly as it
> >>> turns out). Installing such got me back to having a
> >>> root-on-USB boot of the OPi+2e (other than the
> >>> mircosd card having the older U-Boot (2020.10 as it
> >>> turns out). Of course there is also the matching
> >>> boot.scr involved --but it also is on the USB SSD.
> >>> (Similarly reverted RPi2 U-Boot, other than needing
> >>> to switch boot.scr to match.)
> >>> 
> >>> After booting with the reverted U-Boot related
> >>> material:
> >>> 
> >>> # mount -onoatime -tmsdosfs /dev/mmcsd1s1 /mnt
> >>> # mount -onoatime /dev/mmcsd1s2a /media
> >>> 
> >>> # ls -Tla /mnt/
> >>> total 20
> >>> drwxr-xr-x   1 root  wheel  16384 Dec 31 16:00:00 1979 .
> >>> drwxr-xr-x  25 root  wheel    512 Dec 31 16:00:40 2009 ..
> >>> 
> >>> # ls -Tla /media/
> >>> total 60
> >>> drwxr-xr-x   2 root  wheel    512 May 24 15:43:19 2021 .
> >>> drwxr-xr-x  25 root  wheel    512 Dec 31 16:00:40 2009 ..
> >>> -rwxr-xr-x   1 root  wheel  52456 Apr 24 19:48:36 2021 bootcode.bin
> >>> 
> >>> The media is also set up for booting an RPi2 via
> >>> root-in-USB ( other than bootcode.bin ).
> >>> 
> >>> If FreeBSD and the more modern U-Boot were well matched
> >>> for USB support, I'd expect that this sort of thing would
> >>> work (no boot.scr needed).
> >>> 
> >>> For reference:
> >>> 
> >>> # ~/fbsd-based-on-what-freebsd-main.sh 
> >>> FreeBSD OPiP2E_RPi2v11 14.0-CURRENT FreeBSD 14.0-CURRENT mm-src-n245445-def0058cc690 GENERIC-NODBG  arm armv7 1400005 1400005
> >>> def0058cc690 (HEAD -> mm-src) mm-src snapshot for mm's patched build in git context.
> >>> merge-base: 7381bbee29df959e88ec59866cf2878263e7f3b2
> >>> merge-base: CommitDate: 2021-03-12 20:29:42 +0000
> >>> 7381bbee29df (freebsd/main, freebsd/HEAD, pure-src, main) cam: Run all XPT_ASYNC ccbs in a dedicated thread
> >>> n245444 (--first-parent --count for merge-base)
> >> 
> >> Looks like 2021.04 (even before 2021.04_1) also has the
> >> problem for root-on-USB handling.
> >> 
> >> I managed to find a 2021-Apr-09 u-boot-orangepi-plus-2e
> >> directory copy that was 2021.04 (and its boot.scr) but
> >> before the UEFI change. When I tried it for the
> >> root-on-USB context I still got the hangup after "Kernel
> >> args: (null)" in:
> >> 
> >> . . .
> >> Hit [Enter] to boot immediately, or any other key for command prompt.
> >> Booting [/boot/kernel/kernel]...               
> >> Using DTB provided by EFI at 0x47eea000.
> >> Kernel entry at 0xb2e00200...
> >> Kernel args: (null)
> >> 
> >> 
> >> So it does not appear to be the UEFI change so much as
> >> 2021.04 in general for which the FreeBSD kernel and
> >> the U-Boot are apparently(?) mismatched for root-on-USB.
> >> 
> >> 
> >> Reverting again to 2020.10 U-Boot got back the root-on-USB
> >> status. For this the boot looks like:
> >> 
> >> . . .
> >> Hit [Enter] to boot immediately, or any other key for command prompt.
> >> Booting [/boot/kernel/kernel]...               
> >> Using DTB provided by EFI at 0x47ef5000.
> >> Kernel entry at 0xb2e00200...
> >> Kernel args: (null)
> >> ---<<BOOT>>---
> >> KDB: debugger backends: ddb
> >> KDB: current backend: ddb
> >> Copyright (c) 1992-2021 The FreeBSD Project.
> >> Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
> >>       The Regents of the University of California. All rights reserved.
> >> FreeBSD is a registered trademark of The FreeBSD Foundation.
> >> FreeBSD 14.0-CURRENT mm-src-n245445-def0058cc690 GENERIC-NODBG arm
> >> FreeBSD clang version 11.0.1 (git@github.com:llvm/llvm-project.git llvmorg-11.0.1-0-g43ff75f2c3fe)
> >> . . .
> >> 
> > 
> > Well, I got a surprise in exploring: removing boot.scr
> > and ubldr.bin did not prevent booting. (Noticed by the
> > accident of ending up with one of them missing that I
> > only later noticed.) So I recorded a boot and:
> > 
> > . . .
> > U-Boot SPL 2020.10 (Apr 19 2021 - 18:04:31 +0000)
> > DRAM: 2048 MiB
> > Trying to boot from MMC1
> > 
> > 
> > U-Boot 2020.10 (Apr 19 2021 - 18:04:31 +0000) Allwinner Technology
> > 
> > CPU:   Allwinner H3 (SUN8I 1680)
> > Model: Xunlong Orange Pi Plus 2E
> > DRAM:  2 GiB
> > . . .
> > Device 0: Vendor: OWC      Rev: 0    Prod: Envoy Pro mini  
> >            Type: Hard Disk
> >            Capacity: 228936.5 MB = 223.5 GB (468862128 x 512)
> > ... is now current device
> > Scanning usb 0:4...
> > 30675 bytes read in 3 ms (9.8 MiB/s)
> > Found EFI removable media binary efi/boot/bootarm.efi
> > . . .
> > Booting /efi\boot\bootarm.efi
> > Consoles: EFI console  
> > 
> > 
> > |/-\|/-\|/-\|/-\|/-\|/-\|/-\    Reading loader env vars from /efi/freebsd/loader.env
> > 
> > 
> > Setting currdev to disk2p4:
> > 
> > 
> > |/-\|/FreeBSD/arm EFI loader, Revision 1.1
> > . . .
> > 
> > So I've likely been been booting via UEFI for
> > some time via 2020.10 (or even before?), just
> > without noticing at the time.
> > 
> > The other implication is likely that what disabled
> > root-on-USB for my context was not the boot.scr
> > removal material but some (possibly proper) subset
> > of other material changed (extracted from
> > ports' main 0d6e5081eb00 commit cgit display):
> 
> Nope: I forgot that I've tried 2021.04 from before
> the UEFI changes referenced, and also had the
> problem for that context.

 2021.04 cannot work on armv7, caches weren't cleared.

> Still it is interesting that I'm getting a UEFI
> boot context from 2020.10 .

 The only thing I can suggest is git bisect on u-boot repo and see if
you have any result.

> > . . .
> > 
> 
> 
> ===
> Mark Millard
> marklmi at yahoo.com
> ( dsl-only.net went
> away in early 2018-Mar)
> 
> 


-- 
Emmanuel Vadot <manu@bidouilliste.com> <manu@freebsd.org>